An a/c co. had installed in my house & garage AMANA 16.7 seer a/c. 4 T cond. 2 speed M# RSG48C2A, Ultron R-410. 95% variable speed AMV90704CXA furn. And 5 T evap. CH60FCA. House 1,530 & garage 462. City inspector req'd all supplies removed from garage before approving permit. I have a WHITE-BROTHERS 90 Series Premium 1F95-391 Humidistat. If COOL FAST if set to ON it will bring 2nd stage of cooling on any time you manually lower the temp 3 or more degrees below room temp. If COOL FAST is set to OFF, the thermostat will delay 2nd stage from 0 to 30 min. based on how well the 1st stage is keeping up with your setting. When an interior door is opened I believe the flow of air is far too great, especially when 2nd stage is operating. Will you please share with me, my alternates? Thanks, Terry Mishler

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Originally Posted by hvacs

An a/c co. had installed in my house & garage AMANA 16.7 seer a/c. 4 T cond. 2 speed M# RSG48C2A, Ultron R-410. 95% variable speed AMV90704CXA furn. and 5 T evap. CH60FCA. House 1,530 & garage 462. City inspector req'd all supplies removed from garage before approving permit. I have a WHITE-BROTHERS 90 Series Premium 1F95-391 Humidistat. If COOL FAST if set to ON it will bring 2nd stage of cooling on any time you manually lower the temp 3 or more degrees below room temp. If COOL FAST is set to OFF, the thermostat will delay 2nd stage from 0 to 30 min. based on how well the 1st stage is keeping up with your setting. When an interior door is opened I believe the flow of air is far too great, especially when 2nd stage is operating. Will you please share with me, my alternates? Thanks, Terry Mishler

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Have the contractor come back and adjust the blower. You paid good money for there service so it should work correctly.